Backfire
Thread Starter
Pro
Joined: Oct 2005
Posts: 501
Likes: 64
From: Columbia MD
Backfire
I just replaced the fuel pressure regulator on my '94 Corvette. Every time I drove the car I would smell gasoline after parking it. Replacing the fuel pressure regulator seemed to do the trick, as it was definitely bad.
However, I tried driving it around the block today to test it and it backfired a couple times on me. Any ideas what it could be? I'm wondering if there is gasoline inside the engine since there may have been gasoline in the oil due to the bad fuel pressure regulator.
I've changed the oil multiple times. I also replaced the fuel injectors on the car prior to changing the fuel pressure regulator.
However, I tried driving it around the block today to test it and it backfired a couple times on me. Any ideas what it could be? I'm wondering if there is gasoline inside the engine since there may have been gasoline in the oil due to the bad fuel pressure regulator.
I've changed the oil multiple times. I also replaced the fuel injectors on the car prior to changing the fuel pressure regulator.
Race Director
Joined: Dec 2000
Posts: 17,551
Likes: 26
From: El Paso Texas
Backfired out of the intake or the exhaust? As Mohammed stated, ignition / emissions related failures most often cause backfiring. Run a quick compression test to rule out a stuck valve though. Any codes stored in the PCM?
If the compression test gives it a clean bill of health mechanically, have the ignition module tested next.
If the compression test gives it a clean bill of health mechanically, have the ignition module tested next.
